* {
	font-family: 微软雅黑;
}

html {
	height: 100%;
	box-sizing: border-box;
}

body {
	height: 100%;
	margin: 0;
	background-color: #ddd;
	display: flex;
	justify-content: center;
	align-items: center;
}
.login{
	background-color: #fff;
	width:340px;
	padding-top:30px;
	border-radius: 5px;
}

img {
	width:180px;
	display: block;
	margin: 0 auto;
}
p{
	text-align: center;
	margin: 10px 0;
	color:#888;
	padding-bottom: 5px;
	font-size: 20px;
}
form{
	padding:0 30px 20px;
}
input {
	display: block;
	margin:10px 0;
	height:40px;
	width:100%;
	border:1px solid #aaa;
	font-size : 14px;
}
input:focus {
	border:1px solid #ff0000;
}
#btn{
	width:100%;
	line-height: 40px;
	background-color:red;
	color:white;
	margin:5px 0;
}
#error{
	color: red;
	margin:3px 0;
}